Question: 38. A collection of coins are flipped. The outcomes are independent, and the ith coin comes up heads with probability cti9 i = 1

38. A collection of ç coins are flipped. The outcomes are independent, and the ith coin comes up heads with probability cti9 i = 1 , n . Suppose that for some value of j , 1 < j < ç, á, = y. Find the probability that the total number of heads to appear on the ç coins is an even number.

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